Soft Shelled Crayfish

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    Posted: 29 Oct 2011 at 12:07pm
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This maybe a strange Question , but , time , Place, Circumstances.

I know in NZ that Soft Shelled Crayfish are a NO go and I totally respect this, during my gathering in NZ.

However I am currently residing in the Solomon Islands, I have just had a bag of Crayfish delivered to me, some are just stunning creatures, however about 3 of the 8 have soft shells.

Are these Ok to eat? I presume they are.

I'm guessing the reason that soft shelled crays in NZ are a no go because of the damaged caused to them, while collecting???

Thanks for your help

 
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Post Options Post Options   Likes (0) Likes(0)   Quote Raging Bull Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 2011 at 12:39pm
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I think the reasons for not taking them in soft shell is to give them a chance, when soft they generally come out and sit around in the light to harden up the shells which can make them easy to get. You can almost tell if they are soft just by where they are sitting. Another reason could be, as you say, because of the damage caused, but if you are gathering them to eat, and i cant think of any other reason for taking them, then does it matter if they are damaged? So I'm not sure if it is because they will be easily damaged, sometimes you don't know if they are soft until you grab them anyway, which by then the damage, if any, would have been done.

As far as eating them goes, a soft shell wont change the meat in them so go for it. 

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Post Options Post Options   Likes (0) Likes(0)   Quote felixx Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 2011 at 2:28pm
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soft shell crab is a delicacy
Originally posted by TG

LMAO felixx, you a sick puppy! hehe
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Crayfish release an enzyme that softens ups the shell, as they have a exoskeleton they can only grow bigger by hoping out of the old shell and hardening up the new one underneath. They dont sit out in the open/ sunlight to harden up the shell.....that would mean death from predation. The reason they come into shallow water to shell is because it is safer for them  from large predators. The enzyme causes the meat to be flowery and it is not as sweet or firm, they pull the moajority of the calcium in their shell and hold it in two small capsules, untill post molt, when they release the calcium back into the shell causing it to harden up.
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Post Options Post Options   Likes (0) Likes(0)   Quote Raging Bull Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 2011 at 5:47pm
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Well there you go, you learn something new every day. So why can't you take them when they are soft? Why are they so easy to get when they are soft?
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I wonder, Do they stretch a bit when soft? I mean if you got an undersized one can you make a soft cray legal by squeezing it one way or the other?
 
I guess the easy answer to Raging bulls question is you can't take them when soft because thats what the regulations say. Doesn't have to be any rhyme or reason for the law.
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Post Options Post Options   Likes (0) Likes(0)   Quote Rig63 Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 2011 at 6:25pm
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FWIW - MFish regulation extract below - you can take crays soft when pre-moult - learnt this when a 5kg one was acquired on the boat and was in the pre-moult phase - very easy to identify this phase - all good to take and tasted just fine (apologise for the bold - can't get it to go away in this post)

http://www.fish.govt.nz/en-nz/Recreational/Most+Popular+Species/Rock+Lobster/Soft+Shell.htm

Soft Shell

The SOFT shell is “post” moult, ( ie) when the rock lobster sheds the old shell and the immediate stage after that the shell is soft/rubber like. Over a period of time the shell hardens up. The definition of soft shell stage from the Amateur Fishing regulations is the “state of a rock lobster following moulting where the exoskeleton has not reached full hardness.

Pre Moult the shell is still the “original” and will not be considered soft although there can be a slight softening of the original shell.

Most Rock Lobsters don’t “pot” during this time but obviously are available to divers.

Immediately before “pre moult” and at “post moult” the rock lobster flesh is a pink colour and tends to be a bit “mushy after cooking.

As the shell starts to harden up there is a transition stage which may require some reasonable interpretation of when the rock lobster has reached “full hardness”

A good rule is that if the Rock Lobster ( Cray) feels in anyway soft and it is NOT pre moult then it should NOT be taken.

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Originally posted by Raging Bull Raging Bull wrote:

Well there you go, you learn something new every day. So why can't you take them when they are soft? Why are they so easy to get when they are soft?

Cause the Law sayith so???

Cause they have brains the size of peas, and congregate in shallower water  in nests when molting?LOL
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Post Options Post Options   Likes (0) Likes(0)   Quote Raging Bull Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 2011 at 9:20pm
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sweet as, I was told the reason they go into shallow water was to get more light to help harden the shell. Seemed logical to me. I guess because someone decided that's what the law would be seems more logical to some.
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Originally posted by Raging Bull Raging Bull wrote:

Well there you go, you learn something new every day. So why can't you take them when they are soft? Why are they so easy to get when they are soft?
I think your second question is the answer to the first - i.e you can't take them when they are soft because they are so easy to get.
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Post Options Post Options   Likes (0) Likes(0)   Quote Raging Bull Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 2011 at 12:34pm
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Originally posted by Cigar Cigar wrote:

Originally posted by Raging Bull Raging Bull wrote:

Well there you go, you learn something new every day. So why can't you take them when they are soft? Why are they so easy to get when they are soft?
I think your second question is the answer to the first - i.e you can't take them when they are soft because they are so easy to get.

True that, thats what i thought and i thought they were easy to get because they came up into the shallows to get the light to help harden the shells. But i cant find anything to confirm that theory. So i am now curious as to why they would come into the shallows and make themselves vulnerable. 

The only thing i have come up with is that they are naturally lethargic after molting which would make the law against taking them when they are soft seem reasonable, in order to give them a chance. So perhaps that is the answer to the question of why you cant take them, or why someone decided that is the "law"! 

But i cant find any reason for them coming into the shallows to molt. As mentioned, i was under the impression that it was to get the sun/light on their shells to help harden them but other than someone telling me that that is the case  can not find any info on the Internet to support that theory.

So last question, if anyone knows or gives a shet, any ideas why they come in to the shallows to molt? 

Chur

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Post Options Post Options   Likes (0) Likes(0)   Quote JAKE D Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 2011 at 3:08pm
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there is less larger predators in the shallows
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Originally posted by Raging Bull Raging Bull wrote:

The only thing i have come up with is that they are naturally lethargic after molting which would make the law against taking them when they are soft seem reasonable

Law, Reasonable..... can't be that.
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Post Options Post Options   Likes (0) Likes(0)   Quote M@CC@ Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 2011 at 9:15pm
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Ok the results are in .............. Yes the flesh on the soft shelled was a little more 'soft' once cooked though there was nothing in, although a slightly different texture, both tasted good. I'll also add that they were both horribly undersize, so were very sweet!, 7 more in freezer for the next week.Tongue 
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Post Options Post Options   Likes (0) Likes(0)   Quote Capt Asparagus Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 2011 at 9:42pm
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They sure have no concept of minimum size limits up there, do they? :-)
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Post Options Post Options   Likes (0) Likes(0)   Quote M@CC@ Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 2011 at 9:56pm
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No Stu, as you know they don't, but there was some huge ones in the bag as well, can't complain!, Currently in Auki, Malaita, even caught a couple of fish Wink
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[/QUOTE]

True that, thats what i thought and i thought they were easy to get because they came up into the shallows to get the light to help harden the shells. But i cant find anything to confirm that theory. So i am now curious as to why they would come into the shallows and make themselves vulnerable. 

The only thing i have come up with is that they are naturally lethargic after molting which would make the law against taking them when they are soft seem reasonable, in order to give them a chance. So perhaps that is the answer to the question of why you cant take them, or why someone decided that is the "law"! 

But i cant find any reason for them coming into the shallows to molt. As mentioned, i was under the impression that it was to get the sun/light on their shells to help harden them but other than someone telling me that that is the case  can not find any info on the Internet to support that theory.

So last question, if anyone knows or gives a shet, any ideas why they come in to the shallows to molt

Chur

[/QUOTE]

Found this...."Mating occurs in mature females that have recently moulted, although their shells 

need not be “soft” for mating to occur, a few hours to about five weeks after the 

female moult.  Mating can take as little as 90 seconds, and egg laying occurs 

immediately afterwards.  Fertilisation is external, by way of a spermatophoric mass 

deposited on the sternum of the female. 

20. Most mature J. edwardsii females moult and mate some time between February and 

May.  Females carrying eggs occur in greatest numbers from April to October, 

though a few are found during any month of the year.  Females bear eggs only once 

each year and most mature females carry eggs during the egg-bearing season.  

Successful reproduction requires mature male and female lobsters of similar size". 




which may help explain why they molt in shallow water, as they then quickly mate, and shallow is safer for that as well as warmer in temp?
"I love standing by the ocean and just knowing what its for"
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